NCL527 Hard Disk/Floppy Controller Settings and Configuration
NCL AMERICA
NCL527
Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard Drives Suppported: Two AT Interface (IDE) drives
Floppy Drives Supported: Two 360KB, 720KB, 1.2MB, or 1.44MB drives
CONNECTIONS | |
Functions | Location |
40-pin connector-IDE(AT) Interface | CN1 |
34-pin data cable connector-floppy drive | CN2 |
5-pin connector-DC power | PWR |
4-pin connector-drive active LED | LED |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | IOCHRDY connected to CN1, Pin 27 | JP1 | pins 1 & 2 closed |
IOCHRDY connected to CN1, Pin 21 | JP1 | pins 2 & 3 closed | |
IOCHRDY not connected | JP1 | open | |
| » | IRQ14 connected directly to bus | JP3 | pins 2 & 3 closed |
IRQ14 enabled by pin 39 high | JP3 | pins 1 & 2 closed | |
IRQ14 not connected to bus | JP3 | open | |
DRIVE PORT ADDRESS | ||||
Hard Drive Address | Floppy Drive Address | JP2/pins 1 & 2 | JP2/pins 3 & 4 | |
| » | 1F0-1F7h | 3F0-3F7h | open | open |
170-177h | 370-377h | open | closed | |
1F0-1F7h | Disabled | closed | closed | |
Disabled | 3F0-3F7h | closed | open | |
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